利用气相色谱法测定从报废的 2-氯苯丙二腈混合炸药中回收的己烯

Pub Date : 2024-05-01 DOI:10.1166/mex.2024.2670
Dandan Liu, Yongyang Mao, Xing Fang, Chen Li, Xianjun Xie, Dengzhi Fang
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引用次数: 0

摘要

本研究的重点是使用索氏提取法从退役的 CS 混合爆炸物中提取六六六(RDX)。使用 rtnanol 溶液进行重结晶,以纯化提取物并去除 CS 等杂质。使用傅立叶变换红外光谱和熔点测试仪进行定性分析。此外,还采用气相色谱法对回收的 RDX 进行定性和定量分析。实验结果表明,在浓度为 500 mg/L 至 6000 mg/L 的范围内,回收的 RDX 呈较强的线性关系,相关系数为 r = 0.9999,相对标准偏差(RDS)≤5%(n = 6)。此外,通过使用乙醇进行二次重结晶,回收的 RDX 纯度可达 100%。气相色谱法定量分析 RDX 具有操作简便、准确度高和灵敏度高等优点。
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Determination of hexogen recovered from scrapped 2-chlorobenzalmalononitrile mixed explosives by gas chromatography
This study focuses on the extraction of Hexogen (RDX) from decommissioned CS mixed explosives using the Soxhlet extraction method. Recrystallization using a solution of rtnanol is utilized to purify the extract and remove impurities, such as CS. Qualitative analysis is conducted using Fourier transform infrared spectroscopy and a melting point tester. Additionally, gas chromatography is employed for qualitative and quantitative analysis of the recovered RDX. The experimental results demonstrate that the recovered RDX exhibits a strong linear relationship at concentrations ranging from 500 mg/L to 6000 mg/L, with a correlation coefficient of r = 0.9999 and a relative standard deviation (RDS) of ≤5% (n = 6). Furthermore, the purity of the recovered RDX can reach 100% through secondary recrystallization using ethanol. The quantitative analysis of RDX by gas chromatography offers the advantages of operating cylinder, high accuracy and high sensitivity.
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